N=2 Superstrings with (1,2m) Spacetime Signature

Details N=2 Superstrings with (1,2m) Spacetime Signature N=2 Superstrings with (1,2m) Spacetime Signature

1991-12-06

arxiv.org/abs/hep-th/9112014v1

Phys.Lett.B284:268-272,1992

Physics

High Energy Physics

High Energy Physics - Theory

8 pages

Scientific paper

10.1016/0370-2693(92)90431-3

We show that the $N=2$ superstring in $d=2D\ge6$ real dimensions, with criticality achieved by including background charges in the two real time directions, exhibits a ``coordinate-freezing'' phenomenon, whereby the momentum in one of the two time directions is constrained to take a specific value for each physical state. This effectively removes this time direction as a physical coordinate, leaving the theory with $(1,d-2)$ real spacetime signature. Norm calculations for low-lying physical states suggest that the theory is ghost free.

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